Acicarpha          

Acidswamp Yelloweyed Grass          

Adam And Eve          

Adderstongue          

African Daisy          

African Pepperwort          

African Tamarisk          

Agrimony          

Agueweed          

Aiken Hawthorn          

Ailanthus          

Airplant          

Alabama Cherry          

Alabama Serviceberry          

Alabama Supplejack          

Albizia          

Alder          

Alfalfa          

Alkali Sacaton      

Allegheny Blackberry      

Allegheny Brookfoam          

Allegheny Hawkweed          

Allegheny Monkeyflower          

Allegheny Mountain Buttercup          

Allegheny Mountain Goldenbanner          

Allegheny Serviceberry      

Allegheny Stonecrop          

Allegheny-spurge          

Alliaria          

Alligator-flag          

Alligatorlily          

Alligatorweed      

Aloe Yucca      

Alpine Violet          

Alsike Clover      

Alternateleaf Dogwood      

Alumroot          

Amberique-bean          

American Alumroot          

American Barberry          

American Basswood      

American Beachgrass      

American Beautyberry      

American Beech